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How to get “wc -l” to print just the number of lines without file name?
...is the most concise, and awk and perl seem a bit overkill, but they should all be relatively fast and portable enough.
Also note that some of these can be adapted to trim surrounding whitespace from general strings, as well (along with echo `echo $FOO`, another neat trick).
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Anyone else find naming classes and methods one of the most difficult parts in programming? [closed]
...tByID() EmployeeAdd(), EmployeeDeleteByID(). When you use a more grammatically correct syntax such as GetEmployee(), AddEmployee() you'll see that this gets really messy if you have multiple Gets in the same class as unrelated things will be grouped together.
I akin this to naming files with dates...
Neither BindingResult nor plain target object for bean name available as request attribute [duplicat
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yes; In controller where you are calling login view. LIke.. @RequestMapping(value = "/", method = RequestMethod.GET) public String displayLogin( Model model) { model.addAttribute("login", new Login()); return "login"; }
– Vinay
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How do I run a program with commandline arguments using GDB within a Bash script?
When running a program on GDB, usually, the arguments for the program are given at the run command. Is there a way to run the program using GDB and as well as give arguments within a shell script?
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How to log cron jobs?
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* * * * * myjob.sh >> /var/log/myjob.log 2>&1
will log all output from the cron job to /var/log/myjob.log
You might use mail to send emails. Most systems will send unhandled cron job output by email to root or the corresponding user.
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MySQL “Group By” and “Order By”
...olumns in a SELECT with a GROUP BY clause is non-standard. MySQL will generally return the values of the first row it finds and discard the rest. Any ORDER BY clauses will only apply to the returned column value, not to the discarded ones.
IMPORTANT UPDATE
Selecting non-aggregate columns used to wor...
Are strongly-typed functions as parameters possible in TypeScript?
...f the types of its argument and its return type. Here we specify that the callback parameter's type must be "function that accepts a number and returns type any":
class Foo {
save(callback: (n: number) => any) : void {
callback(42);
}
}
var foo = new Foo();
var strCallback = (re...
How to check if a stored procedure exists before creating it
...uld do, but is not stored on the database side.
That's much like what is called anonymous procedure in PL/SQL.
Update:
Your question title is a little bit confusing.
If you only need to create a procedure if it not exists, then your code is just fine.
Here's what SSMS outputs in the create scri...
svn: replace trunk with branch
... try it? IIRC, SVN shows that the files were deleted and readded but internally, it will know that the files have been moved.
– Aaron Digulla
Sep 27 '10 at 7:12
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Real life trading API [closed]
... this is something that the exchange has to support and your broker has to allow. Most exchanges I know of, do not allow automated trading without prior permission.
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